TextExpander

I use it every day. The trick is to make sure your main apps all connect to it.

Both on phone and on Mac. Highly recommend.

When used with a supported app, such as Nebulous Notes, this app really saves you a lot of time and increases your productivity.

I use it for Textastic and it does make my work go fast, hats off to TextExpander

This is one of the best productivity apps available. It makes writing and note taking on the iPhone and iPad very easy. I just wish it was Mail and Pages used it also. Highly recommended. There have been no problems on my iPad 2 or iPhone 4.